1Pull in r199399 from upstream clang trunk (by Jakob Stoklund Olesen):
2
3  SPARCv9 implements long double as an IEEE quad.
4
5Introduced here: http://svnweb.freebsd.org/changeset/base/262262
6
7Index: tools/clang/test/CodeGen/sparcv9-abi.c
8===================================================================
9--- tools/clang/test/CodeGen/sparcv9-abi.c
10+++ tools/clang/test/CodeGen/sparcv9-abi.c
11@@ -18,6 +18,9 @@ long long f_int_3(long long x) { return x; }
12 // CHECK-LABEL: define signext i8 @f_int_4(i8 signext %x)
13 char f_int_4(char x) { return x; }
14 
15+// CHECK-LABEL: define fp128 @f_ld(fp128 %x)
16+long double f_ld(long double x) { return x; }
17+
18 // Small structs are passed in registers.
19 struct small {
20   int *a, *b;
21Index: tools/clang/lib/Basic/Targets.cpp
22===================================================================
23--- tools/clang/lib/Basic/Targets.cpp
24+++ tools/clang/lib/Basic/Targets.cpp
25@@ -4529,6 +4529,12 @@ class SparcV9TargetInfo : public SparcTargetInfo {
26       UIntMaxType = UnsignedLong;
27     }
28     Int64Type = IntMaxType;
29+
30+    // The SPARCv8 System V ABI has long double 128-bits in size, but 64-bit
31+    // aligned. The SPARCv9 SCD 2.4.1 says 16-byte aligned.
32+    LongDoubleWidth = 128;
33+    LongDoubleAlign = 128;
34+    LongDoubleFormat = &llvm::APFloat::IEEEquad;
35   }
36 
37   virtual void getTargetDefines(const LangOptions &Opts,
38